Thursday, May 10, 2007

Daf Yomi - Yevamos 6 - Highlights

The Gemora had stated: We have successfully found a source teaching the principle that a positive commandment overrides a standard prohibition; where do we find that a positive commandment overrides a prohibition that is subject to the penalty of kares, thus requiring the verse aleha to teach that one cannot perform yibum on his wife’s sister?

The Gemora continues: Perhaps it can be derived from the mitzvah of honoring one’s father and mother. It was taught in a braisa: One might have thought that the mitzvah of honoring one’s father and mother overrides Shabbos (if a parent would instruct their son to violate the Shabbos, he would be obligated to listen); the Torah writes [Vayikra 19:3]: Every man: Your mother and father shall you revere, and My Shabbos’ shall you observe, I am HaShem your G-d. We infer from here: Everyone is obligated to honor HaShem, including the father and the mother. The Gemora assumes that the Torah is referring to a case where the parent said to his son, “Slaughter for me,” or Cook for me,” which is a kares prohibition. The reason he shouldn’t obey the father is because of the specific verse (mentioned above), but otherwise, the positive commandment of obeying one’s parent would override a prohibition, even one that consists of kares.

The Gemora objects to this proof: The Torah is referring to a case where the parent instructed him to lead a loaded animal on Shabbos, which is not a kares prohibition. (This is referred to as the prohibition of mechamer, leading an animal with a load on it on Shabbos. This prohibition does not involve a death punishment, even though all other Shabbos prohibitions do involve the death penalty.)

The Gemora objects to this interpretation: If the verse is referring to a standard prohibition and nevertheless, the positive commandment of honoring one’s parents does not override the prohibition of mechamer, let us derive from here that positive commandments cannot override a prohibition?

Perhaps you would answer that the prohibitions pertaining to Shabbos are stricter than a standard prohibition and therefore we would not be able to compare this situation with other prohibitions (a positive commandment cannot override a Shabbos prohibition, but it can override a regular prohibition).

The Gemora proves from a braisa that the prohibitions pertaining to Shabbos are similar to other prohibitions.

It was taught in a braisa: If a kohen’s father tells his son to become tamei or not to return a lost object, he should not obey him because it is written [Vayikra 19:3]: Every man: Your mother and father shall you revere, and My Shabbos’ shall you observe, I am HaShem your G-d. We infer from here: Everyone is obligated to honor HaShem, including the father and the mother. Although the verse is referring to the prohibition of Shabbos, nevertheless, we derive from there regarding all prohibitions. It is evident that the Tanna does not consider a Shabbos prohibition stricter than a regular prohibition. (5b – 6a)

The Gemora concedes that it is evident that the Torah is referring to a case where the parent instructed the son to slaughter or cook for him, which involves a kares prohibition. The fact that we needed a verse to teach us that he should not obey his parent’s command indicates that a positive commandment can override a prohibition that involves kares. Yet, this still will not explain why the verse aleha is required to teach us that a man cannot perform yibum on his wife’s sister. In the case where the parent instructed the son to slaughter or cook for him, the prohibited act of slaughtering or cooking is essential for the fulfillment of the commandment (and that is why one might think that it would be permitted to do); however in the case of yibum, it is not essential to violate the prohibition of living with one’s wife’s sister in order to fulfill the mitzvah since the mitzvah can be observed by performing chalitzah. Accordingly, it should never enter our mind that the mitzvah shall override the kares prohibition of his wife’s sister since the mitzvah can be fulfilled through performing a chalitzah; why is the verse aleha required? (6a)

The Gemora presents another source: Perhaps it can be derived from the mitzvah of building the Beis Hamikdosh. It was taught in a braisa: One might have thought that the mitzvah of building the Beis Hamikdosh should override Shabbos; the Torah writes [Vayikra 19:3]: My Shabbos’ shall you observe, and My Sanctuary shall you revere; I am HaShem. We infer from here: Everyone is obligated to honor HaShem, including the Sanctuary. The Gemora assumes that the Torah is referring to a case of building and destroying, which is a kares prohibition. The reason one should not violate the Shabbos is because of the specific verse (mentioned above), but otherwise, the positive commandment of building the Beis Hamikdosh would override a prohibition, even one that consists of kares.

The Gemora objects to this proof: The Torah is referring to the prohibition of leading a loaded animal on Shabbos, which is not a kares prohibition.

The Gemora objects to this interpretation: If the verse is referring to a standard prohibition and nevertheless, the positive commandment of building the Beis Hamikdosh does not override the prohibition of mechamer, let us derive from here that positive commandments cannot override a prohibition?

Perhaps you would answer that the prohibitions pertaining to Shabbos are stricter than a standard prohibition and therefore we would not be able to compare this situation with other prohibitions (a positive commandment cannot override a Shabbos prohibition, but it can override a regular prohibition).

The Gemora proves from a braisa that the prohibitions pertaining to Shabbos are similar to other prohibitions.

It was taught in a braisa: If a kohen’s father tells his son to become tamei or not to return a lost object, he should not obey him because it is written [Vayikra 19:3]: Every man: Your mother and father shall you revere, and My Shabbos’ shall you observe, I am HaShem your G-d. We infer from here: Everyone is obligated to honor HaShem, including the father and the mother. Although the verse is referring to the prohibition of Shabbos, nevertheless, we derive from there regarding all prohibitions. It is evident that the Tanna does not consider a Shabbos prohibition stricter than a regular prohibition.

The Gemora concedes that it is evident that the Torah is referring to a case of building and destroying on Shabbos, which is a kares prohibition. The fact that we needed a verse to teach us that one should not build or destroy on Shabbos indicates that a positive commandment can override a prohibition that involves kares. Yet, this still will not explain why the verse aleha is required to teach us that a man cannot perform yibum on his wife’s sister. In the case of building and destroying for the Beis Hamikdosh, the prohibited act of building and destroying is essential for the fulfillment of the commandment (and that is why one might think that it would be permitted to do); however in the case of yibum, it is not essential to violate the prohibition of living with one’s wife’s sister in order to fulfill the mitzvah since the mitzvah can be observed by performing chalitzah. Accordingly, it should never enter our mind that the mitzvah shall override the kares prohibition of his wife’s sister since the mitzvah can be fulfilled through performing a chalitzah; why is the verse aleha required?

The Gemora asks: We do not need a verse to teach us that the positive commandment does not override a prohibition of kares even when the prohibition is essential for the fulfillment of the commandment since we have previously derived this from the verse concerning the mitzvah of honoring one’s parents. (6a)

The Gemora states: The verse juxtaposing the observance of Shabbos with the revering of the Beis Hamikdosh is actually teaching us something entirely different (and we cannot derive from there that a positive commandment will override a kares prohibition). It was taught in a braisa: Just like one does not revere the Shabbos, but reveres the One who instructed us to observe the Shabbos, so too one is not required to revere the Beis Hamikdosh. Rather, one is required to revere the One who instructed us regarding the building of the Beis Hamikdosh.

How does one display reverence of the Beis Hamikdosh? One should not enter the Temple Mount with his stick, shoe, and money belt or with the dust upon his feet. One should not use it as a shortcut and spitting is forbidden based on a kal vachomer.

This halacha is applicable even when the Beis Hamikdosh is not in existence. This is derived from the fact that the Torah juxtaposed the observance of Shabbos to the reverence of the Beis Hamikdosh. Just as the obligation to observe Shabbos is forever, so too, the reverence of the Beis Hamikdosh is forever. (6a – 6b)

The Gemora posits another source (as to why we would think that the mitzvah of yibum overrides the prohibition of living with his wife’s sister even though it involves kares): It can be derived from the prohibition regarding kindling on Shabbos.

The school of Rabbi Yishmael taught in a braisa: It is written [Shmos 35:3]: You shall not kindle a fire in any of your dwellings on the Shabbos day. What do we learn from here?

The Gemora asks: How can you ask what is learned from this verse? There is a braisa that presents a dispute between Rabbi Yosi and Rabbi Nosson regarding this verse. It was taught in a braisa: Rabbi Yosi said that this verse teaches us that kindling on Shabbos is merely a prohibition (and incurs lashes for violating it and not kares or stoning). Rabbi Nosson said: It is to teach us that one is liable for punishment for violating one melocha (labor) on Shabbos. (Otherwise, we would have thought that one incurs a punishment only if he violates all thirty-nine melochos.)

Rava answers: The Tanna was questioning the word “dwellings.” Why was it necessary for the Torah to write that one cannot kindle in any of your dwellings, indicating that it is forbidden outside of Eretz Yisroel, as well; Shabbos is a personal obligation, and personal obligations apply even outside Eretz Yisroel (unlike a mitzvah which is dependent on land, where the obligation will only be in Eretz Yisroel)?

A student answered in the name of Rabbi Yishmael: The word “dwellings” in this verse is used for a gezeirah shavah (one of the thirteen principles of Biblical hermeneutics - it links two similar words from dissimilar verses in the Torah) to teach us that this verse is referring to a Beis Din, and even a Beis Din cannot perform an execution (for example, burning) on one who committed a capital offense on Shabbos.

The Gemora assumes that this braisa is following Rabbi Nosson’s opinion, who maintains that one who kindles on Shabbos incurs the penalty of kares, and yet, we required a verse to teach us that Beis Din cannot perform an execution on one who committed a capital offense on Shabbos. Otherwise, we would have thought that the positive commandment of executing a capital offender would override the prohibition of kindling on Shabbos. We can derive from here that in other instances, a positive commandment will override a prohibition that involves kares. This is why we would have thought that one can perform yibum on his wife’s sister, if not for the verse of aleha.

The Gemora objects to this proof and states that perhaps the braisa is following Rabbi Yosi’s opinion, who holds that kindling is merely a prohibition that incurs lashes if violated, but not the penalty of kares.

The Gemora concludes: Even if the Tanna is following Rabbi Yosi’s opinion, there would still be a proof that a positive commandment overrides a kares prohibition. Rabbi Yosi only said that kindling was merely a prohibition (and not subject to kares) in regards to a regular case of kindling. Beis Din’s kindling (when it is preparing an execution by burning) involves the cooking of a lead wick (a wick of lead is heated and then the molten lead is poured down the offender’s throat). Rav Ashi had said that there is no difference between cooking this (lead) wick and cooking herbs. Cooking is obviously a melocha which is subject to kares. It emerges that even if the Tanna follows Rabbi Yosi’s viewpoint, we can see that a positive commandment overrides a kares prohibition and that is why we needed aleha to teach us that a man may not perform a yibum on his wife’s sister. (6b)

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